Problems with "Get Data", via SQL Serve Analysis Service

I'm a student and beginner in Power BI who needs help.... when i try get data from analysis services directly and put the server name, an alert appears: "The server you are trying to connect to doesn't have any models or isn't allowed to access to them". 

I have already tried various procedures and ask for help from more experienced people, but I continue with the same warning. I have already seen the credentials, the server name (localhost and the name that appears in Analysis Service, with and without \MULTIDIMENSIONAL).

Can someone help me? 

Thank you